Assighob to the dodge



(No Model.)

G. PHILION.

TURNING LATHE.

Patented May 22, 1888.

'IIIII III I II rrnn dra'rns GEORGE PI-IILION, OF MISHAWAKA, INDIANA, ASSIGNOR TO THE DODGE MANUFACTURING COMPANY, OF SAME PLACE.

TURNING-LATHE.

SPECIFICATION forming part of Letters Patent No. 383,369, dated May 22, 18188.

Application filed September 5, 1887. Serial No. 248,824.

To all whom it may concerm.

Be it known that I, GEORGE PrIILIon, of Mishawaka, in the county of St. Joseph and State of Indiana, have invented new and useful Improvements in that Glass of Turning- Lathes Adapted to Turning Cylindrical Sticks or Poles; and I do hereby declare that the following is a full and accurate description of the same, reference being bad to the accompanying drawings, wherein Figure l is a side elevation of my machine. Fig. 2 is a sectional elevation of the same. Figs. 3 and 4 are end elevations of the same. Fig. 5 is a central transverse section.

In machines of this character it is preferable to revolve the cutters and. cause the stick to travel longitudinally without revolution, and it is essential that the stick shall not come in contact with any revolving part of the machine except the cutters, because it is essential that the stick shall be strongly supported close to the cutters, and if so supported in a part that revolves the entrance of a small quantity of sawdust or shaving is liable to wedge and stop the feed, and, by frictional heat, burn the surface of the stick. it is also essential that the revolving part shall rest in bearings which are always in line; otherwise said bearings are liable to heat. The sticks are usually square in cross-section, and to prevent them revolving with the cutters there is a guide at the entrance side provided with an angular opening corresponding with the crosssection shape of the stick, so that itis restrained from revolution as the cutter acts upon it. At the exit side there is a guide with a circular orifice corresponding in size with the diameter of the finished pole or stick.

I am aware that previous to my invention a lathe had been constructed with two tubular guides mounted above a bed plate or frame, one of said guides having a square orifice and the other having a cylindrical orifice, and a cutter head mounted and'revolving on the inwardl y-proj ectin g heads of said tubular guides 5 but that differs from my invention. The ends of said tubular guides were square and could not approach near to the plane of the cutters, and therefore the actual support of the stick (No model.)

head are tubular, and tubular guides are inserted at their open ends and are independentl y supported by attachment to the pillowblocks or other permanent support upon the bed-plate, and the ends of said tubular guides are so tapered that they may be extended to the plane of the cutter.

That others may fully understand my invention, I will particularly describe it.

A is the bed block or frame, provided with the pillow-blocks B B, and the journal-bearings d d are provided with caps e e, secured to the pillow-blocks by screws, as usual, The tubular cutter-head F is provided at each end with ajournal, or, adapted to turn in the bearings d (1, and, with the pulley g, to receive the running belt, whereby the cutter-head will be revolved. The central part is provided with seats for the cutters h, which are fastened in the usual way, so that when a stick of proper size is caused to pass through said cutter-head the cutters It will travel around it and reduce it to a cylinder. The central hollow of the cutter-head is increased in diameter at the plane of the cuttcrs entranee-that is to say, at the transverse plane at which the cutting begins, (indicated in the drawings at m w)--and a tubular guide, I, is inserted within the cutter-head, asshown, and secured permanentlyin position by strap k, which clamps said guides to the pillow-block or other permanent sup port. The guide I has an angular orifice adapted to receive the sticks to be rounded, and to re stra-fii them from revolving with the cutters its inner end is conical or tapered on the outside, so that it may be extended into the cutter-head to the plane ofthe cutter without unduly weakening said cutter-head at that point. At the exit end a guide, J, is similarly inserted into the hollow mandrel and rigidly secured by the strap m. The two supporting-sleeves of the cutter-mandrel are thus firmly supported on each side of the cutters, and at the same time the stationary guides I and J, by reason of their extending to the plane of the cutters, as already described, completely separate every part of said sleeves from the stationary piece of wood which is being operated upon. The inner end of the guide J is also conical, to enable it'to advance to the plane of the cutter on the exit side. The guide J has a circular orifice corresponding in size with the diameter of the finished pole. The cutter-head F, therefore, revolves entirely independent of the guides I and J, and no part ofsaid head except the cutters comes in contact with the stick under treatment, and said stick cannot be inj ured by failure to feed forward properly or by reason of sawdust or shavings drawn with it into the guide J. The usual automatic feed may be employed.

Having described my invention, I claim- 1. The hollow revolving cutter-head F, pro- Vided with journals n, pulley g, and cutters h, and the permanent journal-bearings d,supporting and centering saidjournals on each side of the cutters, and caps e 6, combined with the tubular guides I J, supported and secured independent of the cutter-head and entering the latter from each side thereof, as set forth.

2. A hollow revolving cutter-head, enlarged at the planes of the cutters on each side of the latter, provided with journals n and journalbearings d, combined with guides I and J, tapered or conical at their inner ends, and extending from each side inward to the planes :1: x of the cutter, as set forth.

GEORGE PI-IILION.

Witnesses:

W. H. DODGE, W. B. HOSFORD. 

